Job Activity > Variance > Backup Job Size Variance report

Article:HOWTO71608  |  Created: 2012-02-08  |  Updated: 2012-02-08  |  Article URL
Article Type
How To



Job Activity > Variance > Backup Job Size Variance report

This report provides an indication of how a backup size varies from the average size. You can detect any anomalies if the variation is too high.

This report calculates the backup size variation of the last good backup with the average backup size per a client, policy, and schedule type. If any variation calculation is greater than the selected value of variance when the report is run, the client, policy and schedule type combination is shown with the actual variation.

Size variance is calculated using the following formula: (the last backup size - the average backup size) / the average backup size x 100.

Consider the following points before running a Backup Job Size Variance report:

  • This report considers only full schedules.

  • This report does not consider deduplication jobs.

  • This report does not consider failed jobs. The report considers jobs with status code like 0, 1 etc.

  • If you ran multiple jobs for the same client in the given time frame like 10 jobs per the master server, client, policy, and schedule combination then the report calculates the difference between the last job and the average of the remaining 9 jobs.

  • In case of multi-stream jobs, the report considers each stream as a different job.

The Client Name column of the report provides a drilldown link to back up job details for the specified time frame.

Figure: Backup Job Size Variance report shows a sample view of the Backup Job Size Variance report.

Figure: Backup Job Size Variance report

Backup Job Size Variance report

The following are the details that are associated with the Backup Job Size Variance report:

Report Name

Backup Job Size Variance

Report Category


Where to Locate

Report > Report Templates > Backup > Job Activity > Variance > Backup Job Size Variance

Report Purpose

This report shows job size variance.

Supported products

EMC Networker, IBM Tivoli Storage Manager, Symantec Backup Exec, Symantec NetBackup, Symantec NetBackup Master Appliance, Symantec NetBackup PureDisk

Applicable View

Master Server

Report Display


Drill down report


See Client backup jobs.

Can be scheduled


Supported formats


Mapping with NOM report

Reporting > All Reports > Standard Reports > Jobs > Backup Job Size Variance

The following table lists the filters for Backup Job Size Variance report and how you can use these filters to view specific data in the report.






Select a view to show data for the selected view in the report. By default All My Views is selected.

Master Server

Master Server

Select one or more master servers to view data for the selected master servers in the report. All master servers that are added to the OpsCenter console are shown in the Value drop-down list .



Select an appropriate value of variance percentage. By default, all the variance percentages that are greater than 1 are displayed in the Variance (%) column in the report.

Example of filter usage: You may run the Backup Job Size Variance report for a specific master server to view details only for the specific master server.

The following report enhancements have been made for the Backup Job Size Variance report:

  • The unit Years has been added for Relative Timeframe selection.

    You can now view data for the last x years.

  • The option Next has been removed from the drop-down menu for Relative Timeframe. You now cannot enter a relative timeframe like Next 2 weeks. This is because the report does not support any futuristic data.

Legacy ID


Article URL

Terms of use for this information are found in Legal Notices